Window-fastener.



UNITED STATES PATENT OFFICE.

WINDOW-FASTENER.

To all wtmn it www concern:

Be it known that we, GEORGE S. LORD and JAMES AFFLEcK, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Window- Fasteners, of which the following is a specification.

This invention relates to improvements in sash-fasteners of that type comprising two hinged sections, one of which is rigidly secured in position upon the upper sash, while the opposite section is provided with stopflanges to engage with the lower sash and either limit the amount the window can be opened or lock it in a closed position.

The principal object of the invention is to provide means for locking or securing a window which has been left partly open for the purpose of ventilation.

A further object is to so construct a fastener of this kind as to enable it to be cheaply manufactured from sheet metal and readily applied to any window.

h for a full description of the invention and t e knowledge of the details of construction of the means for effecting the result reference is to be had to the following description and accompanying drawings, in which- Figure l is a perspective view showing the application of the device. Fig. 2 is a detail perspective view of the fastener. Fig. 8 is a plan View of the fastener before the iianges are bent into position.

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The sash-fastener comprises, essentially, two

2, which may be formed of sheet metal and are hinged together at 3 along one of the lonmunication at its inner end with an upwardlyg extending longitudinal cut 5. The portion of the plate 2 above the cut 4 is bent outwardly at approximately right angles to the plate 2 to form an outwardly-projecting Specification of Letters Patent.

Application filed December 29,1905. Serial No. 293,841.

merits thereof and also to acquire a.

dow-sash can be approximately rectangular plates l and Patented Aug. 7, 1906.

iiange 6, and the lower 6 adjacent to the cut 5 form a stop-flange 7. A portion is cut away from the lower end of the plate 2 and adjacent to the hinged member 3. This cut-away portion is shown as being rectangular in shape, and a small leaf 8 fits within said opening and is hinged to the plate l. This leaf 8 is adapted to move independently of the plate 2 and is provided at its lower end with an extension which is bent outwardly to form the stop-flange 9.

In the operation of the device the plate l is secured to the right-hand stile of the upper sash l immediately over the lower sash l1, so that the stop-fiange 9 can be swung over the top of the lower sash and lock the window in a closed position. When it is desired to open the window a limited amount for Ventilating purposes, the leaf 8 is swung around so that the stop-flange 9 projects into the glass-receiving opening. The lower sash l1 can then be raised or the upper sash 10 lowered until the upper stop-iiange 7 comes into contact with the top of the lower sash l l. When the plate 2 and leaf 8 are both turned so that the stop-flanges 7 and 9 project into the glass-receiving opening in the upper sash, it will be evident that either winraised orlowered as far as the casing will permit.

The plate l is preferably made somewhat longer than the plate 2, as shown in the drawings, in order to prevent any one from boring a hole through the window-sash and opening the fastener with a wire or similar device.

While the fastener is illustrated as adapted to be applied to the right-hand side of the upper sash, it will be understood that with slight modifications it might also be placed upon the opposite side of the sash.

Having thus described the invention, what is claimed as new isl. Asash-fastener comprising a fixed plate, a second plate hinged to the fixed plate, an outwardly-extending stop-flange projecting from the second plate, and a third member serving as a stop and hinged to the first-mentioned plate so as to operate independently of the second plate.

2. A sash-fastener comprising afixed plate, a second plate hinged to the fixed plate, an outwardly-extending flange projecting from the second plate, a stop-ange projecting fromithe said flange, and a third member serving as a stop and hinged to the xed portion of the iiange is bent upwardly to IOO ITO

cut, the portion leaf pivoted to the fixed plate and operating in a space formed by cutting away a portion of the second-mentioned plate, and a stop- 15 flange projecting from said leaf.

In testimony whereof we affix our signatures in presence of two witnesses.

GEORGE S. LORD. JAMES AFFLECK.

l Witnesses:

HARRY C. PoDoLsKY. LUCY GArNEs. 

